<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<meta http-equiv="X-UA-Compatible" content="IE=edge">
		<meta name="viewport" content="width=device-width, initial-scale=1,user-scalable=no">
		<title></title>
		<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
		<style type="text/css">
			.jumbotron{
				background: pink;
			}
		</style>
	</head>
	<body>
		<!-- 就要求掌握 visible-* 和 hidden-*这两个 -->
		<div class="container">
			<div class="jumbotron visible-xs">
				<h1>Hello, world!</h1>
			</div>			
		</div>
	</body>
	<script src="js/jquery.min.js" type="text/javascript" charset="utf-8"></script>
	<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</html>
